CN109021924B - Green dust-fixing agent and preparation method thereof - Google Patents

Green dust-fixing agent and preparation method thereof Download PDF

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Publication number
CN109021924B
CN109021924B CN201810573413.7A CN201810573413A CN109021924B CN 109021924 B CN109021924 B CN 109021924B CN 201810573413 A CN201810573413 A CN 201810573413A CN 109021924 B CN109021924 B CN 109021924B
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dust
parts
fixing agent
green
dextrin
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CN109021924A (en
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冯拥军
张毅
韩瑛
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Beijing Yinghua High Tech Co ltd
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Beijing Yinghua High Tech Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/22Materials not provided for elsewhere for dust-laying or dust-absorbing

Abstract

The invention relates to a green dust-fixing agent and a preparation method thereof, wherein the green dust-fixing agent is prepared by adopting pregelatinized starch, dextrin, xanthan gum, cellulose ether derivatives, cane sugar and water as raw materials and carrying out proper weight proportion, a compound mixture of the pregelatinized starch, the dextrin, the xanthan gum and the cellulose ether derivatives is used as a main adhesive, and the cane sugar is used as an auxiliary adhesive, so that a stable multipoint cross-linked reticular structure can be formed between dust and soil particles by fully utilizing the colloid characteristic of plant polysaccharide, the dust and the soil can be efficiently captured and fixed, the dust-fixing effect is good, the dust-fixing period is long, and the dust-fixing agent has certain scouring resistance; the product is green and safe, environment-friendly and pollution-free, and does not cause secondary pollution; the construction is simple, the operation is convenient, and the requirements of different dust-fixing environments such as construction in construction sites, mines, industrial manufacturing and the like can be met; the preparation method has the advantages of low manufacturing cost, simple preparation process and easy industrial production and large-scale popularization.

Description

Green dust-fixing agent and preparation method thereof
Technical Field
The invention relates to the technical field of dust fixing agents, and particularly relates to a green dust fixing agent and a preparation method thereof.
Background
Dust control is an important problem of air pollution control at present, and many dust problems are caused by artificial emission, such as building construction site dust emission, mine exploitation dust emission, road transportation dust emission, industrial production dust emission and the like.
The hydraulic dust settling and fixing method is the most common and simple dust removal method at present, but the water has large surface tension, poor dust infiltration effect and easy volatilization, so that the efficiency of dust settling by simply watering is low, the action time is short, and the current environment-friendly requirement is difficult to meet.
In recent years, many studies on dust fixing agents have been made in various countries, but these products have problems of difficult degradation, high cost, secondary pollution and the like to different degrees. CN200810057756.4 takes silica gel as a main raw material to prepare a dust-fixing agent, the proportion of the silica gel in the raw material is more than eighty percent, and the method mainly has the problem of difficult degradation; CN201010204156.3 uses high molecular synthetic water-soluble polymer, propylene glycol phenyl ether, polyvinyl alcohol, polyacrylic acid ammonium salt and water to prepare dust suppressant, the method has the problem of secondary pollution; CN201210329645.0 is made of sodium carboxyethyl cellulose, sodium carboxypropyl starch, hydrogen peroxide, glycerol, calcium chloride, sodium fluoride, dibutyl phthalate, bentonite and water to prepare the dust suppressant, the process is complex, and the secondary pollution problem also exists; CN201110160998.8 uses natural latex, natural plant fiber, glycerol, surfactant and water to prepare dust suppressant, the cost is high, and the problem of difficult degradation is also existed; CN106350014A is made into a dust-settling agent by hydrolyzed animal protein, sodium dodecyl sulfate, hydroxyethyl cellulose, silicone resin polyether emulsion and the like, and the method has the problems of complex manufacturing process and high cost.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a green dust-fixing agent which is environment-friendly, easy to degrade, environment-friendly and strong in dust-fixing capacity, and a preparation method thereof. By adjusting the ratio of sulfur to oxygen in the rare earth sulfur oxide, colorants of different colors can be obtained. The green dust-fixing agent is an aqueous solution with a modified plant polysaccharide complex (a complex mixture of pregelatinized starch, dextrin, xanthan gum and cellulose ether derivatives) as a main adhesive and plant disaccharide (sucrose) as an auxiliary adhesive; the dust fixing agent fully utilizes the colloid characteristic of the plant polysaccharide, and can form a stable multipoint cross-linked reticular structure between dust and soil particles, thereby realizing the high-efficiency capture and fixation of the dust and the soil; the dust fixing agent is green and safe, environment-friendly, simple to prepare and convenient to use, and can meet dust fixing requirements under different conditions.
The technical scheme adopted by the invention is as follows:
a green dust-fixing agent comprises the following raw material components:
10-60 parts of pregelatinized starch, 5-50 parts of dextrin, 1-5 parts of xanthan gum, 1-10 parts of cellulose ether derivatives, 10-80 parts of sucrose and 3000 parts of water.
Further preferably, the raw material components of the green dust-fixing agent comprise:
10-50 parts of pregelatinized starch, 5-30 parts of dextrin, 1-3 parts of xanthan gum, 1-5 parts of cellulose ether derivatives, 15-60 parts of sucrose and 500-1500 parts of water.
Further preferably, the raw material components of the green dust-fixing agent comprise:
30 parts of pregelatinized starch, 15 parts of dextrin, 2 parts of xanthan gum, 3 parts of cellulose ether derivatives, 40 parts of cane sugar and 1000 parts of water.
The cellulose ether derivatives are one or a mixture of more of carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose and hydroxypropyl cellulose.
A method of making the green dust fixative comprising the steps of:
(1) sequentially and uniformly mixing pregelatinized starch, dextrin, xanthan gum, cellulose ether derivatives and sucrose to obtain mixed powder;
(2) and adding water into the mixed powder, and stirring to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
In the step (1), the grain size of the gelatinized starch is less than 80 meshes (0.175mm), and the viscosity is more than 300mpa & s; the DE value of the dextrin is 15-19%, and the solubility is more than 98%; the particle size of the xanthan gum is less than 80 meshes (0.175mm), and the viscosity is more than 1200mpa & s; the cellulose ether derivative has a particle size of less than 80 meshes (0.175mm) and viscosity of more than 600 mpa-s.
In the step (2), the stirring temperature is 15-60 ℃, and the stirring time is 45-120 min;
the stirring was carried out at a rate of 60 to 180 rpm.
The invention has the beneficial effects that:
the green dust-fixing agent is prepared by adopting pre-cured starch, dextrin, xanthan gum, cellulose ether derivatives, sucrose and water as raw materials in a proper weight ratio, a compound mixture of the pre-gelatinized starch, the dextrin, the xanthan gum and the cellulose ether derivatives is used as a main adhesive, and the sucrose is used as an auxiliary adhesive, so that the colloidal characteristics of plant polysaccharide are fully utilized, a stable multipoint cross-linked reticular structure can be formed between dust and soil particles, and the dust and the soil can be efficiently captured and fixed; has the advantages that: (a) the gelling property of the plant polysaccharide is organically combined with the penetration property of the plant disaccharide, so that the plant polysaccharide can quickly penetrate downwards while forming a film on the surface layer of the soil, and a stable, high-strength and continuous solidified layer is formed outside the soil, so that soil and dust particles can be effectively fixed, and dust raising can be effectively inhibited; (b) the formed cured layer has good stability, certain scouring resistance, good dust fixing effect and long dust fixing period, can meet the dust fixing requirements under different environments such as solarization, high temperature, rainfall, strong wind and the like, and passes the wind condition dust fixing test under the 6-8 level wind force condition; (c) all formula designs are considered on the premise of environmental protection, so that the product is green and safe, environment-friendly and pollution-free, and does not cause secondary pollution; (d) the construction is simple, the operation is convenient, and the requirements of different dust-fixing environments such as construction in construction sites, mines, industrial manufacturing and the like can be met; (f) the preparation method has the advantages of low manufacturing cost, simple preparation process and easy industrial production and large-scale popularization.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the following examples 1g is represented by 1 part by weight.
Example 1
The embodiment provides a green dust-fixing agent, which comprises the following raw material components: 10 parts of pregelatinized starch, 5 parts of dextrin, 1 part of xanthan gum, 10 parts of carboxymethyl cellulose, 10 parts of cane sugar and 500 parts of water.
The green dust-fixing agent is prepared by the following method:
(1) fully and uniformly mixing pregelatinized starch, dextrin, xanthan gum, carboxymethyl cellulose and sucrose in sequence to obtain mixed powder; the average grain diameter of the pregelatinized starch is 0.15mm, and the viscosity is 400mpa & s; dextrin DE value of 17% and solubility of 99.5%; the xanthan gum has the average particle size of 0.11mm and the viscosity of 1650mpa & s; the average grain diameter of the carboxymethyl cellulose is 0.12mm, and the viscosity is 800mpa & s;
(2) and adding water into the mixed powder, and stirring at the speed of 120rpm for 45min at the temperature of 15 ℃ to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
Example 2
The embodiment provides a green dust-fixing agent, which comprises the following raw material components: 60 parts of pregelatinized starch, 5 parts of dextrin, 5 parts of xanthan gum, 5 parts of hydroxypropyl methyl cellulose, 80 parts of cane sugar and 3000 parts of water.
The green dust-fixing agent is prepared by the following method:
(1) sequentially taking the pregelatinized starch, dextrin, xanthan gum, hydroxypropyl methyl cellulose and sucrose, and fully and uniformly mixing to obtain mixed powder; the average grain diameter of the pregelatinized starch is 0.15mm, and the viscosity is 400mpa & s; the DE value of dextrin was 17% and the solubility was 99.5%; the xanthan gum has an average particle size of 0.11mm and a viscosity of 1650mpa · s; the hydroxypropyl methylcellulose has an average particle diameter of 0.14mm and a viscosity of 1300mpa · s;
(2) and adding water into the mixed powder, and stirring at the speed of 180rpm for 45min at the temperature of 60 ℃ to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
Example 3
The embodiment provides a green dust-fixing agent, which comprises the following raw material components: 30 parts of pregelatinized starch, 10 parts of dextrin, 1 part of xanthan gum, 5 parts of hydroxyethyl cellulose, 20 parts of cane sugar and 1000 parts of water.
The green dust-fixing agent is prepared by the following method:
(1) sequentially and uniformly mixing pregelatinized starch, dextrin, xanthan gum, hydroxyethyl cellulose and sucrose to obtain mixed powder; the average grain diameter of the pregelatinized starch is 0.15mm, and the viscosity is 400mpa & s; the DE value of dextrin was 17% and the solubility was 99.5%; the xanthan gum has an average particle size of 0.11mm and viscosity of 1650mpa · s, the hydroxyethyl cellulose has an average particle size of 0.12mm and viscosity of 1500mpa · s;
(2) and adding water into the mixed powder, and stirring at the speed of 120rpm for 80min at the temperature of 45 ℃ to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
Example 4
The embodiment provides a green dust-fixing agent, which comprises the following raw material components: 50 parts of pregelatinized starch, 10 parts of dextrin, 3 parts of xanthan gum, 2 parts of hydroxypropyl methyl cellulose, 2 parts of carboxymethyl cellulose, 50 parts of cane sugar and 1500 parts of water.
The green dust-fixing agent is prepared by the following method:
(1) sequentially and uniformly mixing pregelatinized starch, dextrin, xanthan gum, hydroxypropyl methyl cellulose, carboxymethyl cellulose and sucrose to obtain mixed powder; the average grain diameter of the pregelatinized starch is 0.15mm, and the viscosity is 400mpa & s; the DE value of dextrin was 17% and the solubility was 99.5%; the xanthan gum has an average particle size of 0.11mm and a viscosity of 1650mpa · s; the hydroxypropyl methylcellulose has an average particle diameter of 0.12mm and a viscosity of 1500mpa · s; the carboxymethyl cellulose has an average particle diameter of 0.12mm and a viscosity of 800mpa · s;
(2) and adding water into the mixed powder, and stirring at the speed of 60rpm for 60min at the temperature of 45 ℃ to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
Example 5
The embodiment provides a green dust-fixing agent, which comprises the following raw material components: 30 parts of pregelatinized starch, 30 parts of dextrin, 2 parts of xanthan gum, 4 parts of hydroxyethyl cellulose, 2 parts of hydroxypropyl cellulose, 60 parts of cane sugar and 1200 parts of water.
The green dust-fixing agent is prepared by the following method:
(1) sequentially and uniformly mixing pregelatinized starch, dextrin, xanthan gum, hydroxyethyl cellulose, hydroxypropyl cellulose and sucrose to obtain mixed powder; the average grain diameter of the pregelatinized starch is 0.15mm, and the viscosity is 400mpa & s; the DE value of dextrin was 17% and the solubility was 99.5%; the xanthan gum has an average particle size of 0.11mm and viscosity of 1650mpa · s; the hydroxyethyl cellulose has an average particle diameter of 0.12mm and a viscosity of 1500mpa · s; the hydroxypropyl methylcellulose has an average particle diameter of 0.14mm and a viscosity of 1300mpa · s;
(2) and adding water into the mixed powder, and stirring at the speed of 120rpm for 60min at the temperature of 45 ℃ to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
Example 6
The embodiment provides a green dust-fixing agent, which comprises the following raw material components: 15 parts of pregelatinized starch, 50 parts of dextrin, 3 parts of xanthan gum, 1 part of carboxymethyl cellulose, 30 parts of cane sugar and 1000 parts of water.
The green dust-fixing agent is prepared by the following method:
(1) sequentially and uniformly mixing pregelatinized starch, dextrin, xanthan gum, carboxymethyl cellulose and sucrose to obtain mixed powder; the average grain diameter of the pregelatinized starch is 0.15mm, and the viscosity is 400mpa & s; the DE value of dextrin was 17% and the solubility was 99.5%; the xanthan gum has an average particle size of 0.11mm and viscosity of 1650mpa · s; the carboxymethyl cellulose has an average particle diameter of 0.12mm and a viscosity of 800mpa · s;
(2) and adding water into the mixed powder, and stirring at the speed of 60rpm for 60min at the temperature of 45 ℃ to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
Examples of the experiments
Taking a certain building construction site as an example: soil property components: the sand-soil mixture is the main; test area: 500 square meters.
The dust fixing method comprises the following steps: directly spraying the dust-fixing agent to the test ground; spraying amount: 10L of dust fixing agent per square meter. The results are shown in Table 1.
TABLE 1 dust-fixing agent Performance test results
As can be seen from Table 1, the green dust-fixing agent can realize effective dust fixing, has a good dust-fixing effect, is non-toxic, non-corrosive, green, safe and environment-friendly.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The green dust-fixing agent is characterized by comprising the following raw materials:
10-60 parts of pregelatinized starch, 5-50 parts of dextrin, 1-5 parts of xanthan gum, 1-10 parts of cellulose ether derivatives, 10-80 parts of sucrose and 3000 parts of water.
2. The green dust-fixing agent as claimed in claim 1, wherein the raw material consists of the following components:
10-50 parts of pregelatinized starch, 5-30 parts of dextrin, 1-3 parts of xanthan gum, 1-5 parts of cellulose ether derivatives, 15-60 parts of sucrose and 500-1500 parts of water.
3. The green dust-fixing agent as claimed in claim 1, wherein the raw material consists of the following components:
30 parts of pregelatinized starch, 15 parts of dextrin, 2 parts of xanthan gum, 3 parts of cellulose ether derivatives, 40 parts of cane sugar and 1000 parts of water.
4. The green dust-fixing agent as claimed in claim 1, wherein the cellulose ether derivative is one or more of carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose and hydroxypropyl cellulose.
5. A green dust-fixing agent according to claim 1, wherein the pregelatinized starch has a particle size of < 80 mesh and a viscosity of > 300 mpa-s.
6. A green dust binding agent according to claim 1, wherein the dextrin has a DE value of 15-19% and a solubility > 98%.
7. A green dust-fixing agent according to claim 1, wherein the xanthan gum has a particle size < 80 mesh and a viscosity > 1200 mpa-s.
8. A green dust-fixing agent according to claim 1, wherein said cellulose ether derivative has a particle size of < 80 mesh and a viscosity of > 600 mpa-s.
9. A process for preparing the green dust-fixing agent of any one of claims 1 to 8, comprising the steps of:
(1) sequentially and uniformly mixing pregelatinized starch, dextrin, xanthan gum, cellulose ether derivatives and sucrose to obtain mixed powder;
(2) and adding water into the mixed powder, and stirring to fully and uniformly mix the mixed powder to obtain the green dust-fixing agent.
10. The method for preparing green dust-fixing agent according to claim 9, wherein in the step (2), the stirring is carried out at 15-60 ℃ for 45-120 min;
the stirring was carried out at a rate of 60 to 180 rpm.
CN201810573413.7A 2018-06-06 2018-06-06 Green dust-fixing agent and preparation method thereof Active CN109021924B (en)

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CN109575882A (en) * 2018-12-29 2019-04-05 北京首创博桑环境科技股份有限公司 A kind of inhibition miberal powder and the dust suppressant of exposed ground dust and preparation method thereof

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CN105062423A (en) * 2015-07-21 2015-11-18 安徽中发环保科技有限公司 Mine field dust emission inhibitor and preparation method thereof
CN106675522A (en) * 2016-12-29 2017-05-17 河南省九金科技有限公司 Dust depressor for railway coal transport and use method of dust depressor
CN107446550A (en) * 2016-12-29 2017-12-08 河南省九金科技有限公司 A kind of dust suppression sand-consolidating agent
CN107603564A (en) * 2017-10-16 2018-01-19 兰州天际环境保护有限公司 A kind of pollution-free road dust inhibitor and its application method

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Publication number Priority date Publication date Assignee Title
CN102295915A (en) * 2011-09-20 2011-12-28 北京中盛益世环保科技有限公司 Dust inhibitor
CN102660227A (en) * 2012-05-02 2012-09-12 山西兆益矿用材料有限公司 Road dust suppressant
CN102719223A (en) * 2012-06-04 2012-10-10 李东日 Coal granule flying inhibitor mixture, and preparation method and application method thereof
CN103184034A (en) * 2013-01-04 2013-07-03 北京阳光溢彩科技有限公司 Ecological environment-friendly dust inhibitor
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CN106675522A (en) * 2016-12-29 2017-05-17 河南省九金科技有限公司 Dust depressor for railway coal transport and use method of dust depressor
CN107446550A (en) * 2016-12-29 2017-12-08 河南省九金科技有限公司 A kind of dust suppression sand-consolidating agent
CN107603564A (en) * 2017-10-16 2018-01-19 兰州天际环境保护有限公司 A kind of pollution-free road dust inhibitor and its application method

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